Apparently, taking the form of tree or bush was not an uncommon way of spurning unwanted advances in ancient Greece. Syringa joins Daphne who chose to transform herself into a bay laurel to escape Apollo. Syringa's dramatic metamorphosis takes the cold shoulder to a whole other level. Oddly enough Lilacs are considered a symbol of early love.
Mythology aside, lilacs are among my very favorite flowers and the few weeks they are available each year, a season to be savored big bunches at a time.